Depending on successful commissioning during Period 102 and 103, CRIRES will be offered in Period 104 following its upgrade into a cross-dispersed echelle spectrograph.

As SINFONI will be decommissioned during Period 103, it will not be offered anymore.

Indeed, SPIFFI (the Integral Field Unit of SINFONI) will be upgraded and integrated within ERIS – a High angular resolution camera and 3D spectrograph using the AOF. ERIS is expected to be installed and commissioned during the first semester of 2020 at the UT4 Cassegrain focus.

VLTI instruments and facilites

GRAVITY: Provided successful commissioning, CIAO in the on-axis mode may be offered in Period 104.

Depending on a successful commissioning, additional modes for MATISSE may be offered in Period 104.

Provided successful commissioning, GRAVITY could be used as a fringe tracker for MATISSE (GRA4MAT) in a future period.